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KCET2022PhysicsCenter of Mass, Momentum and Collision

The centre of mass of an extended body on the surface of the earth and its centre of gravity

Options

  1. Aare always at the same point only for spherical bodies.
  2. Bcan never be at the same point.
  3. Ccentre of mass coincides with the centre of gravity of a body if the size of the body is negligible as compare
  4. Dare always at the same point for any size of the body.

Correct answer

C. centre of mass coincides with the centre of gravity of a body if the size of the body is negligible as compare

Step-by-step solution

The centre of mass of an extended body on the surface of the Earth and its centre of gravity coincide if the size of the body is negligible as compared to the size (or radius) of the Earth.

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